Masking effect and its removal in PCL radar

Kulpa, Krzysztof; Czekala, Z.

doi:10.1049/ip-rsn:20045026

Cited by 108 publications

(56 citation statements)

References 4 publications

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“…We use the observation or CLEAN algorithm [18][19][20][21] for detection of the weak target. The Doppler frequency (f i1 ), delay (τ i1 ) and amplitude (Â i1 ) of the ith strong target (i = 1, .…”

Section: Sequential Cancellation Batch (Scb) Algorithmmentioning

confidence: 99%

A novel sequential algorithm for clutter and direct signal cancellation in passive bistatic radars

Ansari

Taban

Gazor

2016

EURASIP J. Adv. Signal Process.

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Cancellation of clutter and multipath is an important problem in passive bistatic radars. Some important recent algorithms such as the ECA, the SCA and the ECA-B project the received signals onto a subspace orthogonal to both clutter and pre-detected target subspaces. In this paper, we generalize the SCA algorithm and propose a novel sequential algorithm for clutter and multipath cancellation in the passive radars. This proposed sequential cancellation batch (SCB) algorithm has lower complexity and requires less memory than the mentioned methods. The SCB algorithm can be employed for static and non-static clutter cancellation. The proposed algorithm is evaluated by computer simulation under practical FM radio signals. Simulation results reveal that the SCB provides an admissible performance with lower computational complexity.

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Section: Sequential Cancellation Batch (Scb) Algorithmmentioning

confidence: 99%

A novel sequential algorithm for clutter and direct signal cancellation in passive bistatic radars

Ansari

Taban

Gazor

2016

EURASIP J. Adv. Signal Process.

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“…In general, the most obvious way to implement the coherent processing is calculating the discrete Fourier transform (DFT) of the output of the nth sample point per pulse [7][8][9]. The result for DFT can be expressed as …”

Section: Description Of the Problemmentioning

confidence: 99%

Sampling Deviation Real-time Calibration Method for Wideband Simulator

Song

Pan

2015

TELKOMNIKA

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“…According to [15][16][17], both detection and joint estimation of time delay and Doppler shift of target are based on the cross-ambiguity function (CAF) between direct-path signals and target echoes, in passive bistatic radar system. Its discrete form can be expressed as (see [17])…”

Section: Impact Of Tse On Coherent Detection and Doppler Shift Estimamentioning

confidence: 99%

The impact of time synchronization error on passive coherent pulsed radar system

Zhang

Ding

et al. 2010

Sci. China Inf. Sci.

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Passive bistatic coherent radar system operates with distinct non-cooperative transmitter and receiver located at different sites. In such spatial separation, the receiving system needs to independently solve the problem of time and phase synchronization via direct-path signal. The impact of time synchronization error was explored and solved in passive bistatic coherent radar. The common model of digital sampling process is introduced to illustrate the effect of time synchronization error (TSE). The periodicity of relative sample instant variation of each pulse is deduced. Then, normalized interference power (NIP) is defined to evaluate the potential impact of TSE. The NIP expressions are derived when the difference between the adjacent relative sample instant is uniform distribution or Gaussian distribution. It is found that there are new spurious frequency components and the detection performance is decreased in the case of asynchronous sampling. At the same time, the analytical Doppler frequency bias expression caused by TSE is presented. Theoretical results are confirmed by simulation in the cases of different periods of relative sampling instant.Keywords passive coherent radar (PCR), time synchronization error (TSE), normalized interference power (NIP) CitationHe Y, Zhang C S, Ding J H, et al. The impact of time synchronization error on passive coherent pulsed radar system.

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Masking effect and its removal in PCL radar

Cited by 108 publications

References 4 publications

A novel sequential algorithm for clutter and direct signal cancellation in passive bistatic radars

A novel sequential algorithm for clutter and direct signal cancellation in passive bistatic radars

Sampling Deviation Real-time Calibration Method for Wideband Simulator

The impact of time synchronization error on passive coherent pulsed radar system

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